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+<!DOCTYPE html>
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+<html lang="en">
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+ <head>
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+ <title>three.js webvr - ball shooter</title>
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+ <meta charset="utf-8">
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+ <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no">
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+ <style>
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+ body {
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+ font-family: Monospace;
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+ background-color: #101010;
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+ color: #fff;
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+ margin: 0px;
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+ overflow: hidden;
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+ }
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+ a {
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+ color: #48f;
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+ }
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+ </style>
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+ </head>
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+ <body>
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+
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+ <script src="../build/three.js"></script>
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+ <script src="js/vr/WebVR.js"></script>
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+
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+ <script src="js/geometries/BoxLineGeometry.js"></script>
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+
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+ <script>
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+
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+ var container;
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+ var ms;
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+ var camera, scene, renderer;
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+ var controller1, controller2;
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+
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+ var room;
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+
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+ var count = 0;
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+ var radius = 0.08;
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+ var normal = new THREE.Vector3();
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+ var relativeVelocity = new THREE.Vector3();
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+
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+ var clock = new THREE.Clock();
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+
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+ init();
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+ animate();
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+
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+ function init() {
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+ const urlParams = new URLSearchParams(window.location.search);
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+ const multiview = urlParams.has('enableMultiview');
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+
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+ container = document.createElement( 'div' );
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+ document.body.appendChild( container );
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+
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+ var info = document.createElement( 'div' );
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+ info.style.position = 'absolute';
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+ info.style.top = '10px';
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+ info.style.width = '100%';
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+ info.style.textAlign = 'center';
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+ // @todo Change enabled for requested and check renderer.vr.multiview
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+ info.innerHTML = 'OVR_multiview2 demo - ' + (multiview ? '<b style="color:#3f3">multiview enabled</b>' : '<b style="color:#f33">multiview not enabled</b>') + ` <a href="${multiview ? '?' : '?enableMultiview'}">toggle</a>`;
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+ container.appendChild( info );
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+ ms = document.createElement('div');
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+ ms.innerHTML = '';
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+ info.appendChild(ms);
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+
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+ scene = new THREE.Scene();
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+ scene.background = new THREE.Color( 0x505050 );
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+
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+ camera = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 0.1, 10 );
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+
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+ room = new THREE.LineSegments(
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+ new THREE.BoxLineGeometry( 6, 6, 6, 10, 10, 10 ),
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+ new THREE.LineBasicMaterial( { color: 0x808080 } )
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+ );
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+ room.geometry.translate( 0, 3, 0 );
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+ scene.add( room );
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+
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+ var light = new THREE.HemisphereLight( 0xffffff, 0x444444 );
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+ light.position.set( 1, 1, 1 );
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+ scene.add( light );
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+
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+ var geometry = new THREE.IcosahedronBufferGeometry( radius, 2 );
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+
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+ var numObjects = urlParams.get('num') || 200;
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+
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+ for ( var i = 0; i < numObjects; i ++ ) {
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+
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+ var object = new THREE.Mesh( geometry, new THREE.MeshLambertMaterial( { color: Math.random() * 0xffffff } ) );
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+
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+ object.position.x = Math.random() * 4 - 2;
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+ object.position.y = Math.random() * 4;
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+ object.position.z = Math.random() * 4 - 2;
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+
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+ object.userData.velocity = new THREE.Vector3();
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+ object.userData.velocity.x = Math.random() * 0.01 - 0.005;
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+ object.userData.velocity.y = Math.random() * 0.01 - 0.005;
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+ object.userData.velocity.z = Math.random() * 0.01 - 0.005;
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+
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+ room.add( object );
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+
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+ }
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+
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+ //
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+
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+ var canvas = document.createElement( 'canvas' );
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+ var context = canvas.getContext( 'webgl2', { antialias: false } );
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+ renderer = new THREE.WebGLRenderer( { canvas: canvas, context: context, multiview: multiview } );
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+ renderer.setPixelRatio( window.devicePixelRatio );
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+ renderer.setSize( window.innerWidth, window.innerHeight );
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+ renderer.vr.enabled = true;
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+ container.appendChild( renderer.domElement );
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+
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+ //
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+
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+ document.body.appendChild( WEBVR.createButton( renderer ) );
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+
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+ // controllers
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+
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+ function onSelectStart() {
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+
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+ this.userData.isSelecting = true;
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+
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+ }
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+
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+ function onSelectEnd() {
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+
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+ this.userData.isSelecting = false;
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+
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+ }
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+
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+ controller1 = renderer.vr.getController( 0 );
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+ controller1.addEventListener( 'selectstart', onSelectStart );
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+ controller1.addEventListener( 'selectend', onSelectEnd );
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+ scene.add( controller1 );
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+
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+ controller2 = renderer.vr.getController( 1 );
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+ controller2.addEventListener( 'selectstart', onSelectStart );
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+ controller2.addEventListener( 'selectend', onSelectEnd );
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+ scene.add( controller2 );
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+
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+ // helpers
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+
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+ var geometry = new THREE.BufferGeometry();
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+ geometry.addAttribute( 'position', new THREE.Float32BufferAttribute( [ 0, 0, 0, 0, 0, - 1 ], 3 ) );
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+ geometry.addAttribute( 'color', new THREE.Float32BufferAttribute( [ 0.5, 0.5, 0.5, 0, 0, 0 ], 3 ) );
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+
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+ var material = new THREE.LineBasicMaterial( { vertexColors: true, blending: THREE.AdditiveBlending } );
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+
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+ controller1.add( new THREE.Line( geometry, material ) );
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+ controller2.add( new THREE.Line( geometry, material ) );
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+
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+ //
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+
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+ window.addEventListener( 'resize', onWindowResize, false );
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+
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+ }
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+
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+ function onWindowResize() {
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+
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+ camera.aspect = window.innerWidth / window.innerHeight;
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+ camera.updateProjectionMatrix();
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+
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+ renderer.setSize( window.innerWidth, window.innerHeight );
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+
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+ }
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+
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+ function handleController( controller ) {
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+
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+ if ( controller.userData.isSelecting ) {
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+
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+ var object = room.children[ count ++ ];
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+
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+ object.position.copy( controller.position );
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+ object.userData.velocity.x = ( Math.random() - 0.5 ) * 3;
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+ object.userData.velocity.y = ( Math.random() - 0.5 ) * 3;
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+ object.userData.velocity.z = ( Math.random() - 9 );
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+ object.userData.velocity.applyQuaternion( controller.quaternion );
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+
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+ if ( count === room.children.length ) count = 0;
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+
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+ }
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+
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+ }
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+
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+ //
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+
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+ function animate() {
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+
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+ renderer.setAnimationLoop( render );
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+
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+ }
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+
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+ function render() {
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+
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+ handleController( controller1 );
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+ handleController( controller2 );
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+
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+ //
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+
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+ var delta = clock.getDelta() * 0.8; // slow down simulation
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+
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+ var range = 3 - radius;
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+
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+ for ( var i = 0; i < room.children.length; i ++ ) {
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+
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+ var object = room.children[ i ];
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+
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+ object.position.x += object.userData.velocity.x * delta;
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+ object.position.y += object.userData.velocity.y * delta;
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+ object.position.z += object.userData.velocity.z * delta;
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+
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+ // keep objects inside room
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+
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+ if ( object.position.x < - range || object.position.x > range ) {
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+
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+ object.position.x = THREE.Math.clamp( object.position.x, - range, range );
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+ object.userData.velocity.x = - object.userData.velocity.x;
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+
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+ }
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+
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+ if ( object.position.y < radius || object.position.y > 6 ) {
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+
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+ object.position.y = Math.max( object.position.y, radius );
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+
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+ object.userData.velocity.x *= 0.98;
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+ object.userData.velocity.y = - object.userData.velocity.y * 0.8;
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+ object.userData.velocity.z *= 0.98;
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+
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+ }
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+
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+ if ( object.position.z < - range || object.position.z > range ) {
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+
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+ object.position.z = THREE.Math.clamp( object.position.z, - range, range );
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+ object.userData.velocity.z = - object.userData.velocity.z;
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+
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+ }
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+
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+ for ( var j = i + 1; j < room.children.length; j ++ ) {
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+
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+ var object2 = room.children[ j ];
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+
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+ normal.copy( object.position ).sub( object2.position );
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+
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+ var distance = normal.length();
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+
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+ if ( distance < 2 * radius ) {
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+
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+ normal.multiplyScalar( 0.5 * distance - radius );
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+
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+ object.position.sub( normal );
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+ object2.position.add( normal );
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+
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+ normal.normalize();
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+
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+ relativeVelocity.copy( object.userData.velocity ).sub( object2.userData.velocity );
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+
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+ normal = normal.multiplyScalar( relativeVelocity.dot( normal ) );
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+
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+ object.userData.velocity.sub( normal );
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+ object2.userData.velocity.add( normal );
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+
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+ }
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+
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+ }
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+
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+ object.userData.velocity.y -= 9.8 * delta;
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+
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+ }
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+
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+ var ts = performance.now();
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+ renderer.render( scene, camera );
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+ ms.innerHTML = 'renderer.render time: ' + (performance.now() - ts).toFixed(2) + 'ms';
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+
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+ }
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+
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+ </script>
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+ </body>
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+</html>
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Fernando Serrano